RTO (Regenerative Thermal Oxidation) device for treating high-sulfur and high-salt waste gas

Abstract

The invention relates to an RTO device for treating high-sulfur and high-salt waste gas. The RTO device comprises a main box body, the main box body is provided with a plurality of heat storage chambers arranged at intervals and a combustion chamber communicating with the tops of the heat storage chambers. A heat storage bed which exchanges heat with gas is arranged in the heat storage chamber of the main box body; an air inlet pipeline, an exhaust pipeline and an air return pipeline which are communicated with the bottoms of the heat storage chambers are arranged at the bottom of the main box body; the gas inlet pipeline comprises a main gas inlet pipe and gas inlet branch pipes which communicate with the main gas inlet pipe and are used for inputting low-temperature waste gas into the heat storage chambers. The exhaust pipeline comprises a main exhaust pipe and an exhaust branch pipe which is communicated with the main exhaust pipe and is used for exhausting clean gas in each heat storage chamber; the main box body is provided with a heating bypass communicated with the side wall of the combustion chamber and used for outputting high-temperature gas in the combustion chamber. The RTO device has the effect of prolonging the service life of the RTO device in the low-dew-point and high-corrosion environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of waste gas treatment, in particular to an RTO device for treating high-sulfur and high-salt waste gas. BACKGROUND

[0002] The RTO device, also known as a regenerative thermal oxidizer, is a high-efficiency organic waste gas treatment equipment. Its core principle is to use ceramic heat storage to capture the heat in the waste gas and use this heat to preheat the newly entering waste gas, thereby greatly reducing fuel consumption and achieving high efficiency and energy saving.

[0003] In related technologies, traditional RTO devices are mostly designed with 2-3 beds, and their main function is to treat volatile organic compounds (VOCs) through oxidation. In the treatment process, the tail gas enters the device, exchanges heat with the heat storage body, and then undergoes oxidation reaction in the combustion chamber to decompose organic matter into harmless substances such as carbon dioxide and water.

[0004] According to the related technology in the above, the inventors believe that the RTO device in the above is prone to condensation acid corrosion in a high-corrosion environment, thereby resulting in a shorter service life and higher maintenance cost of the RTO device. SUMMARY

[0005] In order to improve the service life of the RTO device in a low-dew-point and high-corrosion environment, the present application provides an RTO device for treating high-sulfur and high-salt waste gas.

[0006] The RTO device for treating high-sulfur and high-salt waste gas provided by the present application adopts the following technical solution: An RTO device for treating high-sulfur and high-salt waste gas, comprising a main box body; the main box body has a plurality of heat storage chambers arranged at intervals and a combustion chamber communicating with the top of the plurality of heat storage chambers; the main box body is provided with a heat storage bed in the heat storage chamber for heat exchange with gas; the bottom of the main box body is provided with an air inlet pipeline, an air outlet pipeline and a gas return pipeline communicating with the bottom of each heat storage chamber; the air inlet pipeline comprises a main air inlet pipeline and an air inlet branch pipeline communicating with the main air inlet pipeline and used for inputting low-temperature waste gas into each heat storage chamber; the air outlet pipeline comprises a main air outlet pipeline and an air outlet branch pipeline communicating with the main air outlet pipeline and used for discharging clean gas in each heat storage chamber; the main box body has a heating bypass communicating with the side wall of the combustion chamber and used for outputting high-temperature gas in the combustion chamber; the main air outlet pipeline comprises a low-temperature pipe section for connecting the output end of each air outlet pipeline, a mixing chamber communicating with the low-temperature pipe section and used for connecting the output end of the heating bypass, and a high-temperature pipe section communicating with the mixing chamber and used for outputting mixed clean gas.

[0007] By adopting the technical scheme, when the high-sulfur and high-salt waste gas is treated, the waste gas is first input into the regenerator chamber of the main box body through the gas inlet pipeline, the low-temperature waste gas is heat-exchanged with the regenerative bed in the regenerator chamber and is heated, then the heated waste gas is input into the combustion chamber through the top of the regenerator chamber to be decomposed at high temperature, the clean gas generated after the decomposition is input into the corresponding regenerator chamber and is heat-exchanged with the regenerative bed, the low-temperature clean gas obtained after the cooling is discharged through the gas outlet pipeline; the structure of the multiple regenerator chambers and the combustion chamber enables the waste gas to be preheated in the regenerator chamber and then to be fully oxidized and decomposed in the combustion chamber; the heating bypass outputs the high-temperature clean gas in the combustion chamber, and the high-temperature clean gas is mixed with the clean gas in the low-temperature pipeline section in the mixing chamber, so that the temperature of the clean gas is increased, which helps to solve the problems of condensation and corrosion of the flue gas on the subsequent flue and equipment, and helps to improve the service life of the RTO device in the low-dew-point and high-corrosion environment.

[0008] Optionally, the combustion chamber has a ring-shaped cross section, and the multiple regenerator chambers are arranged in a circumferential direction and are connected to the bottom of the combustion chamber.

[0009] By adopting the technical scheme, the ring-shaped cross section of the combustion chamber and the multiple regenerator chambers arranged in the circumferential direction and connected to the bottom of the combustion chamber help to prolong the residence time of the gas in the high-temperature area, so that the organic matter in the waste gas can be more fully combusted, and the waste gas treatment efficiency is improved.

[0010] Optionally, the main box body is provided with multiple combustion pipelines corresponding to the multiple regenerator chambers in the combustion chamber and used for inputting natural gas, and the main box body is provided with multiple burners corresponding to the multiple combustion pipelines at the top of the main box body and used for combusting the mixed gas.

[0011] By adopting the technical scheme, the multiple combustion pipelines corresponding to the multiple regenerator chambers in the combustion chamber and the multiple burners corresponding to the multiple combustion pipelines at the top of the main box body enable the natural gas and the waste gas to be fully mixed and combusted, so that the CO and VOCs in the waste gas can be fully oxidized and decomposed into carbon dioxide in the combustion chamber, and the waste gas treatment efficiency is improved.

[0012] Optionally, the multiple heating bypasses are arranged corresponding to the multiple burners, and each heating bypass is provided with a high-temperature release valve used for controlling the on-off of the heating bypass.

[0013] By adopting the technical scheme, the multiple heating bypasses corresponding to the multiple burners and the high-temperature release valves can flexibly control the output of the high-temperature clean gas, mix the high-temperature flue gas obtained after the full combustion with the treated waste gas, increase the temperature of the treated waste gas, effectively solve the corrosion problem of the flue gas condensation on the subsequent flue and equipment, and accurately adjust according to the actual needs to realize more efficient and stable waste gas treatment.

[0014] Optionally, the high-temperature release valve comprises a valve body, a valve core and a valve seat, the valve core is provided with a valve rod at one end away from the valve seat; the valve seat has a sliding channel for reciprocating movement of the valve rod along the length direction; the valve body is internally formed with a valve cavity for sliding arrangement of the valve core, and the valve seat is arranged at the bottom of the valve cavity; the outer end of the valve rod is sleeved with a bellows, and the valve rod is provided with a valve rod connecting block at one end close to the valve core; one end of the bellows is fixed to the valve rod connecting block and the other end is fixed to the top end of the sliding channel; the valve body has a flow channel communicating with the valve cavity and used for passing of high-temperature clean gas.

[0015] By adopting the above technical scheme, the position of the valve core in the valve cavity is controlled by the movement of the valve rod in the sliding channel of the valve seat, thereby controlling the on-off of the high-temperature clean gas; the bellows can reduce the risk of leakage of high-temperature clean gas, ensure the normal operation of the high-temperature release valve and the sealing of the device, and by mixing the high-temperature flue gas with the treated waste gas through the high-temperature release valve, the temperature of the treated waste gas can be improved, effectively solving the problems of condensation and corrosion of the subsequent flue and equipment.

[0016] Optionally, the heating bypass is provided with an isolation sleeve outside the valve body, and the outer side of the isolation sleeve is provided with a control mechanism for controlling the axial sliding of the valve core.

[0017] By adopting the above technical scheme, the isolation sleeve arranged outside the heating bypass can reduce the influence of high temperature on the control mechanism, ensure the normal operation of the control mechanism, and the control mechanism can accurately control the axial sliding of the valve core, thereby flexibly controlling the on-off of the heating bypass and realizing effective adjustment of the output high-temperature gas.

[0018] Optionally, the valve rod connecting block is provided with a mounting groove at the outer edge and is arranged with a first magnetic force piece in the mounting groove; the control mechanism comprises a second magnetic attraction piece arranged outside the isolation sleeve and magnetically attracted to the first magnetic force piece, and a driving assembly for driving the second magnetic attraction piece to slide.

[0019] By adopting the above technical scheme, the magnetic attraction of the first magnetic force piece and the second magnetic attraction piece and the sliding of the second magnetic attraction piece driven by the driving assembly realize remote control of the axial sliding of the valve core, reduce the influence of high temperature on the control component, ensure the stable operation of the control mechanism, and also effectively control the on-off of the high-temperature release valve, thereby better adjusting the output of high-temperature clean gas.

[0020] Optionally, the drive assembly includes a linear screw arranged along a sliding direction parallel to the valve core, a linear slider slidably arranged on the linear screw and used for arranging the second magnetic attractor, and a drive motor for driving the linear screw to rotate; the linear slider has a first arrangement slot for arranging the screw nut of the linear screw; the linear slider has a second arrangement slot for arranging the second magnetic attractor.

[0021] By adopting the above technical solution, the drive assembly consisting of a linear screw, a linear slider, and a drive motor can achieve precise drive of the second magnetic suction component, thereby controlling the axial sliding of the valve core. This enables more precise control of the heating bypass, ensuring that the RTO unit can flexibly adjust the output of high-temperature clean gas according to actual operating conditions, and improving the stability of the RTO unit's operation and the waste gas treatment effect.

[0022] Optionally, the main intake pipe is equipped with a desalination filter for removing salt particles from the exhaust gas.

[0023] By adopting the above technical solution, a desalination filter can be installed in the main intake pipe to remove salt particles in the exhaust gas in advance, reduce the corrosivity of the exhaust gas, thereby reducing corrosion to the equipment and helping to extend the service life of the equipment.

[0024] Optionally, the high-temperature pipe section is provided with an outlet heat exchanger at the output end for cooling the gas.

[0025] By adopting the above technical solution, an outlet heat exchanger is installed at the output end of the high-temperature pipe section, which can cool the clean gas output from the high-temperature pipe section, recover waste heat, and ensure that the temperature of the RTO outlet flue gas is not too high, thereby reducing the damage caused by high temperature to the equipment and downstream pipelines.

[0026] In summary, this application includes at least one of the following beneficial technical effects: An RTO (Regenerative Thermal Oxidizer) device for treating high-sulfur and high-salt waste gas includes a main housing with multiple regenerator chambers and a combustion chamber connected to each regenerator chamber. When treating the high-sulfur and high-salt waste gas, the waste gas is first introduced into the regenerator chamber of the main housing through an inlet pipe. The low-temperature waste gas exchanges heat with the regenerator bed in the regenerator chamber and is heated. Then, it enters the combustion chamber from the top of the regenerator chamber for high-temperature decomposition. The clean gas produced after decomposition enters the corresponding regenerator chamber and exchanges heat with the regenerator bed. The resulting low-temperature clean gas is discharged through an exhaust pipe. A heating bypass outputs the high-temperature clean gas from the combustion chamber, which mixes with the clean gas in the low-temperature pipe section in a mixing chamber, increasing the temperature of the clean gas. This helps solve the problems of flue gas condensation and corrosion of subsequent flue gas ducts and equipment, and helps extend the service life of the RTO device in low-dew-point, high-corrosion environments. The combustion chamber with annular cross section is matched with a plurality of regenerative chambers which are communicated with the bottom of the combustion chamber in a circumferential interval, which helps to prolong the residence time of the gas in the high temperature area, so that the organic matters in the exhaust gas can be more fully combusted, and the exhaust gas treatment efficiency is improved; The plurality of heating bypasses and high-temperature release valves corresponding to the burners are arranged to flexibly control the output of the high-temperature clean gas, mix the high-temperature flue gas obtained after sufficient combustion with the treated exhaust gas, improve the temperature of the treated exhaust gas, effectively solve the corrosion problem of the flue and equipment caused by flue gas condensation and dewing, and accurately adjust according to actual needs, so that more efficient and stable exhaust gas treatment is realized. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of an RTO device for treating high-sulfur and high-salt exhaust gas in the embodiment of the present application.

[0028] Figure 2 is a sectional view of the RTO device for treating high-sulfur and high-salt exhaust gas in the embodiment of the present application.

[0029] Figure 3 is a sectional view of the main box body in the combustion chamber in the embodiment of the present application.

[0030] Figure 4 is a schematic diagram of the gas inlet pipeline, the exhaust pipeline and the gas return pipeline in the embodiment of the present application.

[0031] Figure 5 is a sectional view of the high-temperature release valve in the embodiment of the present application.

[0032] Figure 6 is Figure 5 is a schematic diagram of the installation of the first magnetic attraction member at A in the embodiment of the present application.

[0033] Figure 7 is a schematic diagram of the installation of the second magnetic attraction member in the embodiment of the present application.

[0034] Explanation of reference numerals in the attached diagram: 1. Main housing; 11. Regenerator chamber; 12. Combustion chamber; 13. Regenerator bed; 14. Burner; 2. Intake pipe; 21. Main intake pipe; 22. First air pump; 23. Intake branch pipe; 24. Intake valve; 25. Desalination filter; 3. Exhaust pipe; 31. Main exhaust pipe; 311. Low-temperature pipe section; 312. Mixing chamber; 313. High-temperature pipe section; 32. Second air pump; 33. Exhaust branch pipe; 34. Exhaust valve; 35. Outlet heat exchanger; 4. Return gas pipe; 41. Main return gas pipe; 42. Third air pump; 43. Return gas branch pipe; 44. Return gas valve; 5. Combustion chamber Piping; 51. Main combustion pipe; 52. Combustion branch pipe; 53. Combustion valve; 6. Heating bypass; 61. High temperature release valve; 611. Valve body; 6111. Sliding channel; 6112. Flow channel; 612. Valve core; 613. Valve seat; 614. Valve stem; 615. Bellows; 616. Valve stem connecting block; 6161. Mounting groove; 6162. First magnetic component; 7. Isolation sleeve; 8. Control mechanism; 81. Second magnetic component; 82. Drive assembly; 821. Linear lead screw; 822. Linear slider; 8221. First arrangement groove; 8222. Second arrangement groove; 823. Drive motor. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0036] This application discloses an RTO (Regenerative Thermal Oxidizer) device for treating high-sulfur, high-salinity waste gas. (Refer to...) Figure 1 The RTO unit for treating high-sulfur and high-salt waste gas includes a main housing 1, an inlet pipe 2, an exhaust pipe 3, a return pipe 4, and a combustion pipe 5.

[0037] Reference Figure 2 and Figure 3 The main housing 1 has five spaced-apart heat storage chambers 11 and a combustion chamber 12 connecting the tops of the five heat storage chambers 11. The combustion chamber 12 has an annular cross-section, and the five heat storage chambers 11 are circumferentially spaced and connected to the bottom of the combustion chamber 12. A heat storage bed 13 for heat exchange with the gas is installed within each heat storage chamber 11 in the main housing 1. An intake pipe 2, an exhaust pipe 3, and a return pipe 4 are located at the bottom of the main housing 1 and connect to the bottom of each heat storage chamber 11. A combustion pipe 5 is located at the top of the main housing 1 and corresponds one-to-one with each of the five heat storage chambers 11.

[0038] Reference Figure 4, the intake pipeline 2 includes a main intake pipe 21, a first air pump 22 driving the main intake pipe 21 to deliver the low-temperature exhaust gas to the main tank 1, intake branch pipes 23 communicated with the output end of the main intake pipe 21 and used for inputting the low-temperature exhaust gas to each regenerative chamber 11, and intake valve members 24 arranged in each intake branch pipe 23 and used for controlling the on-off of the corresponding intake branch pipe 23. The main intake pipe 21 is provided with a desalination filter 25 used for removing salt particles in the exhaust gas.

[0039] With reference to Figure 4 , the exhaust pipeline 3 includes a main exhaust pipe 31, a second air pump 32 driving the main exhaust pipe 31 to extract the exhaust gas in the main tank 1, exhaust branch pipes 33 communicated with the output end of the main exhaust pipe 31 and used for discharging the clean gas in each regenerative chamber 11, and exhaust valve members 34 arranged in each exhaust branch pipe 33 and used for controlling the on-off of the corresponding exhaust branch pipe 33.

[0040] With reference to Figure 4 , the gas return pipeline 4 includes a main gas return pipe 41, a third air pump 42 driving the main gas return pipe 41 to input the clean gas into the main tank 1, gas return branch pipes 43 communicated with the output end of the main gas return pipe 41 and used for inputting the air into each regenerative chamber 11, and gas return valve members 44 arranged in each gas return branch pipe 43 and used for controlling the on-off of the corresponding gas return branch pipe 43.

[0041] With reference to Figure 1 and Figure 2 , the combustion pipeline 5 includes a main combustion pipe 51 connected with an external gas pipeline, combustion branch pipes 52 communicated with the output end of the main combustion pipe 51 and corresponding to the five regenerative chambers 11, and combustion valve members 53 arranged in each combustion branch pipe 52 and used for controlling the on-off of the corresponding combustion branch pipe 52. The top of the main tank 1 has five burners 14 corresponding to the output end of each combustion branch pipe 52 and used for burning the mixed gas.

[0042] With reference to Figure 2 , the main tank 1 has heating bypasses 6 communicated with the side wall of the combustion chamber 12 and used for outputting the high-temperature gas in the combustion chamber 12. The number of the heating bypasses 6 is five and each of the heating bypasses 6 is arranged corresponding to each burner 14 and is provided with a high-temperature release valve 61 used for controlling the on-off of the heating bypass 6. The main exhaust pipe 31 includes a low-temperature pipe section 311 used for connecting the output end of each exhaust pipeline 3, a mixing chamber 312 communicated with the low-temperature pipe section 311 and used for connecting the output end of the heating bypass 6, and a high-temperature pipe section 313 communicated with the mixing chamber 312 and used for outputting the mixed clean gas. The high-temperature pipe section 313 is provided with an outlet heat exchanger 35 at the output end and used for cooling the gas.

[0043] With reference to Figure 5 and Figure 6The high-temperature release valve 61 comprises a valve body 611, a valve core 612 and a valve seat 613. The heating bypass 6 is provided with an isolation sleeve 7 outside the valve body 611. The valve core 612 is provided with a valve rod 614 at an end away from the valve seat 613. The valve body 611 is internally formed with a sliding channel 6111 for sliding arrangement of the valve core 612, and the valve seat 613 is arranged at the bottom of the valve cavity. The valve body 611 has a flow channel 6112 communicating with the valve cavity and used for passing the high-temperature clean gas. The valve rod 614 is externally sleeved with a bellows 615, and the valve rod 614 has a valve rod 614 connecting block at an end close to the valve core 612. One end of the bellows 615 is fixed to the valve rod 614 connecting block and the other end is fixed to the top end of the sliding channel 6111. In this embodiment, the two ends of the bellows 615 are fixed by welding, so that the flow channel 6112 inside the valve body 611 is always isolated during movement of the valve rod 614, reducing the risk of corrosion of the valve rod 614.

[0044] With reference to Figure 5 The valve rod 614 connecting block is arranged inside the bellows 615, and the valve rod 614 connecting block is provided with a mounting groove 6161 along the outer edge and is arranged with a first magnetic element 6162 in the mounting groove 6161. The outer side of the isolation sleeve 7 is provided with a control mechanism 8 for controlling the axial sliding of the valve core 612. The control mechanism 8 comprises a second magnetic element 81 arranged outside the isolation sleeve 7 and magnetically attracted to the first magnetic element 6162, a driving assembly 82 for driving the sliding of the second magnetic element 81.

[0045] With reference to Figure 5 And Figure 7 The driving assembly 82 comprises a linear lead screw 821 arranged parallel to the sliding direction of the valve core 612, a linear sliding block 822 arranged on the linear lead screw 821 and used for arranging the second magnetic element 81, and a driving motor 823 for driving the rotation of the linear lead screw 821. The linear sliding block 822 is provided with a first arrangement groove 8221 for arranging the screw nut of the linear lead screw 821. The linear sliding block 822 has a second arrangement groove 8222 for arranging the second magnetic element 81.

[0046] The implementation principle of the RTO device for treating high-sulfur and high-salt waste gas provided by the embodiment of the application is as follows: when the high-sulfur and high-salt waste gas is treated, the control system is first operated to make the gas inlet valve of the two regenerative chambers 11, the gas outlet valve of the two regenerative chambers 11, and the gas return valve of one regenerative chamber 11 be in the open state respectively, so that the two regenerative chambers 11 are used for gas inlet, the two regenerative chambers 11 are used for gas outlet, and one regenerative chamber 11 is used for gas return; the waste gas is input into the corresponding two regenerative chambers 11 from the gas inlet pipeline 2; the low-temperature waste gas is subjected to heat exchange with the regenerative bed 13 in the regenerative chamber 11 and is heated; the high-temperature clean gas generated after the decomposition of the waste gas in the combustion chamber 12 enters the corresponding two regenerative chambers 11 and is subjected to heat exchange with the regenerative bed 13; the low-temperature clean gas obtained after the cooling is discharged through the gas outlet pipeline 3; after one round of treatment is completed, switching is performed; the gas inlet valve of one regenerative chamber 11 used for gas inlet is closed, and the gas return valve thereof is opened; the remaining regenerative chambers 11 always keep that the two regenerative chambers 11 are used for gas inlet and the two regenerative chambers 11 are used for gas outlet; the switching period is 120 seconds; the high-temperature release valve 61 corresponding to the two regenerative chambers 11 used for gas inlet is opened; the switching period is kept consistent; the high-temperature clean gas in the combustion chamber 12 is output through the heating bypass 6 and is mixed with the clean gas in the low-temperature pipeline section 311 in the mixing chamber 312, so that the temperature of the clean gas is increased, the problems of smoke condensation and corrosion of the subsequent flue and equipment are solved, and the service life of the RTO device in the low-dew-point and high-corrosion environment is improved.

[0047] The above are preferred embodiments of the application, and do not limit the protection scope of the application; therefore, equivalent changes made on the basis of the structure, shape, and principle of the application should be covered by the protection scope of the application.

Claims

1. An RTO device for treating high-sulfur and high-salinity waste gas, characterized in that, The main housing includes a main housing (1); the main housing (1) has a plurality of spaced heat storage chambers (11) and a combustion chamber (12) connecting the top of the plurality of heat storage chambers (11); the main housing (1) has a heat storage bed (13) for heat exchange with gas in the heat storage chambers (11); the bottom of the main housing (1) is provided with an air intake pipe (2), an exhaust pipe (3) and a return pipe (4) connected to the bottom of each heat storage chamber (11); the air intake pipe (2) includes a main air intake pipe (21) and an air intake branch pipe (23) connected to the main air intake pipe (21) and used to input low temperature waste gas into each heat storage chamber (11); the exhaust pipe (3) includes a main exhaust pipe. The main exhaust pipe (31) and the exhaust branch pipe (33) connected to the main exhaust pipe (31) and used for the discharge of clean gas from each of the heat storage chambers (11); the main housing (1) has a heating bypass (6) connected to the side wall of the combustion chamber (12) and used for the output of high temperature gas from the combustion chamber (12); the main exhaust pipe (31) includes a low temperature pipe section (311) for connecting to the output end of each of the exhaust pipes (3), a mixing chamber (312) connected to the low temperature pipe section (311) and used for connecting to the output end of the heating bypass (6), and a high temperature pipe section (313) connected to the mixing chamber (312) and used for the output of the mixed clean gas.

2. The RTO device for treating high-sulfur and high-salinity waste gas according to claim 1, characterized in that, The combustion chamber (12) has an annular cross-section, and a plurality of heat storage chambers (11) are arranged circumferentially and connected to the bottom of the combustion chamber (12).

3. An RTO device for treating high-sulfur and high-salinity waste gas according to claim 2, characterized in that, The main housing (1) has multiple combustion pipes (5) in the combustion chamber (12) that correspond one-to-one with each of the heat storage chambers (11) and are used for natural gas input. The top of the main housing (1) has multiple burners (14) that correspond one-to-one with each of the combustion pipes (5) and are used for combustion of the mixed gas.

4. An RTO device for treating high-sulfur and high-salinity waste gas according to claim 3, characterized in that, The number of heating bypasses (6) is multiple and they are arranged one-to-one with each of the burners (14). Each heating bypass (6) is provided with a high-temperature release valve (61) for controlling the opening and closing of the heating bypass (6).

5. An RTO device for treating high-sulfur and high-salinity waste gas according to claim 4, characterized in that, The high-temperature release valve (61) includes a valve body (611), a valve core (612), and a valve seat (613). The valve core (612) has a valve stem (614) at one end away from the valve seat (613). The valve seat (613) has a sliding channel (6111) for the valve stem (614) to reciprocate along its length. The valve body (611) has a valve cavity inside for the valve core (612) to slide within it. The valve body (611) is located at the bottom of the valve cavity; a bellows (615) is sleeved on the outer end of the valve stem (614), and a valve stem (614) connecting block is provided at one end of the valve stem (614) near the valve core (612). One end of the bellows (615) is fixed to the valve stem (614) connecting block and the other end is fixed to the top end of the sliding channel (6111); the valve body (611) has a flow channel (6112) that communicates with the valve cavity and is used to allow high-temperature clean gas to pass through.

6. An RTO device for treating high-sulfur and high-salinity waste gas according to claim 5, characterized in that, The heating bypass (6) is provided with an isolation sleeve (7) outside the valve body (611), and a control mechanism (8) for controlling the axial sliding of the valve core (612) is provided on the outside of the isolation sleeve (7).

7. An RTO device for treating high-sulfur and high-salinity waste gas according to claim 6, characterized in that, The valve stem (614) connecting block has an installation groove (6161) on its outer edge and a first magnetic element (6162) is arranged in the installation groove (6161); the control mechanism (8) includes a second magnetic element (81) that is slidably arranged on the outside of the isolation sleeve (7) and magnetically attracted to the first magnetic element (6162), and a drive assembly (82) that drives the second magnetic element (81) to slide.

8. An RTO device for treating high-sulfur and high-salinity waste gas according to claim 7, characterized in that, The drive assembly (82) includes a linear screw (821) arranged along a sliding direction parallel to the valve core (612), a linear slider (822) slidably arranged on the linear screw (821) and used for arranging the second magnetic attractor (81), and a drive motor (823) for driving the linear screw (821) to rotate; the linear slider (822) has a first arrangement slot (8221) for arranging the screw nut of the linear screw (821); the linear slider (822) has a second arrangement slot (8222) for arranging the second magnetic attractor (81).

9. An RTO device for treating high-sulfur and high-salinity waste gas according to claim 1, characterized in that, The main intake pipe (21) is equipped with a desalination filter (25) for removing salt particles from the exhaust gas.

10. An RTO device for treating high-sulfur and high-salinity waste gas according to claim 1, characterized in that, The high-temperature pipe section (313) is equipped with an outlet heat exchanger (35) at the output end for cooling the gas.

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